Laws and Regulations 2024 Exam Questions Bank
with 100% Verified Answers |Latest
2025/2026|Latest Update
_____________________________________________________________________________________
Define adsorption
the process whereby a pesticide binds to soil particles
Define persistence
The ability of a pesticide to remain present and active in its original form for an extended period
before breaking down
Define volatility
tendency of a pesticide to turn into a gas or vapor
What is the main cause of spray drift?
pesticides applied as small droplets when nozzles are too far from the target
What is the main cause of vapor drift?
volatile pesticides applied when air temperatures are high and soil is dry and sandy
What is the main cause of particle drift?
dust formulations applied just before or during windy conditions
What is the main cause of runoff?
soluble pesticides applied just before a heavy rain
What is the main cause of leaching?
persistent pesticides applied to the soil
With what soil conditions are you more likely to see pesticides leach through soil?
sandy soil, low organic matter, where groundwater is shallow
What can produce a pesticide residue on a crop that exceeds legal tolerances?
allowing residue to drift onto crop from nearby area
What is the definition of pesticide residue?
what remains of treated surfaces for a time after application
What condition can contribute to the buildup of pesticide residue?
, failing to account for organic matter content of soil before determining the correct application
rate
What practice can cause pesticide residues to accumulate in an area?
applying the same pesticide for many years to the same site
What site characteristic makes it more likely that a pesticide will contaminate groundwater?
geological layers at the site are made up of permeable gravel deposits
Pesticides can cause indirect harm to nontarget organisms by . . . ?
altering their food sources or habitats
What ways do people get exposed to pesticides and the routes of entry?
Container mishandling during transportation and storage; mixing and application; REI
misconduct; enters through dermal, inhalation, or ingestion
How does offsite movement of pesticides endanger human health?
drift reaching homes and items outside; residues on produce and ingesting that produce; runoff
and leaching into drinking water
What conditions at the application site may change and influence the hazards associated with
application?
wind speed, direction, temperature, cloud cover; whether workers are in vicinity; training
What tasks are most often associated with accidental pesticide exposure and why are they
hazardous?
spills, splashes, or equipment failure during transporting, storing, mixing, loading, or applying;
How can incorrect dosage contribute to human hazards?
applying too much will leave greater amounts of residue on crop
How can incorrect application timing contribute to human hazards?
Most pesticides have a PHI to ensure residue will be below tolerance levels at harvest and
consumption; so incorrect timing will cause the PHI to still be in affect when harvesting or even
planned REI
How can incorrect pesticide product application contribute to human hazards?
may apply to an unregistered crop;
What are human hazards associated with pesticides?
skin, eye, respiratory, or oral exposures; dermatitis, lung injury, blindness; not wearing proper
PPE to protect self
What are potential effects of acute and chronic pesticide exposure on people?
, damage and irritation of eyes, mouth, skin, or respiratory tract; nausea, vomiting, etc.; systemic
effects when absorbed by body; dermatitis; allergic reaction
What is heat stress? How do people develop heat stress?
occurs when body cannot cool down so core temperature continues rising; body is attempting
to get rid of excess heat but instead is storing it; developed when person is getting warm and
sweating but the immediate surroundings (say under PPE) are high temperatures and high
humidity as well
The most frequent route of pesticide exposure is through the . . .
skin
Pesticide drift can endanger human health in what ways?
residues exceeding legal limits on crops; contaminating veggies in backyard gardens;
contaminate laundry hung outside to dry; damage surfaces in and around homes
Which of the following conditions observed at a site can quickly change and affect the outcome of
your pesticide application?
wind speed and direction; temperature and cloud cover
Why are mixing and loading considered among the most risky activities for pesticide handlers?
spills and splashes are common when working with concentrated pesticides
What hazard does the preharvest interval help a pesticide applicator avoid?
exposing people to unsafe levels of residue on food they eat; exposing fieldworkers to excessive
pesticide residues on crops they harvest
What could increase hazards to pesticide handlers and fieldworkers?
applying oil soluble pesticides
What defines the difference between chronic and acute pesticide exposure?
chronic exposure is repeated exposure to small amounts of pesticides; acute exposure is short-
term exposure to a large dose of pesticide
On a humid summer day, you notice that a coworker has difficulty focusing on the job he is doing, is
irritable, and starts to complain of feeling sick. When you offer him a cool drink, he shows no interest
in it. Your coworker is suffering from . . .?
heat stress
How does PPE and engineering controls protect a person from hazards associated with pesticides?
they greatly reduce the potential for all types of exposure and reduce chances of pesticide
poisoning
What safety training is provided to field workers and pesticide handlers?
, annual safety trainings before entering treated fields or handling pesticides; certain individuals
will need to take licensing exams
What is included in the employer's responsibility for providing PPE for mixing, loading, applying, and
storing pesticides to employees?
employers are responsible for providing PPE and training on how to use it for ALL employees
that may use, handle, apply, or be exposed to pesticides; must be easily accessible; responsible
for cleaning and maintenance;
What PPE and controls are used to protect handlers from exposure?
chemical resistant clothing; reusables; disposables; coveralls; chemical resistant suits; aprons;
headgear; gloves; footwear; safety googles or glasses; face shields; enclosed cab; closed mixing
systems
How do you select the most effective PPE?
LABEL
How do you dispose of worn or single-use PPE?
Send contaminated garments to facilities approved for pesticide residues; some may allow
burning
How do you prevent or mitigate heat stress?
avoid applications when temperature is too warm; take short breaks;
What are the limits of PPE to protect pesticide handlers?
PPE cannot prevent spills, splashes, or accidental sprays; PPE reduces exposure but cannot
prevent it alone; some pesticides may penetrate PPE; pesticides already on clothing or skin
under PPE have increased chance of being absorbed so make sure you and your clothes are
clean before putting on PPE; don't contaminate the inside of the PPE
What are the different kinds of engineering controls and when are they used?
enclosed cab; closed mixing systems; packaging; atmosphere monitoring equipment
PPE protects you from exposure to pesticides by . . . ?
keeping dry and liquid material off your skin
What is required training for fieldworkers who will enter treated areas within 30 days of the
expirations of any restricted-entry interval?
first aid for pesticide injury and poisoning and emergency decontamination instruction
Pesticide handlers must be trained in which three subject areas?
safe pesticide use; emergencies and health; and legal info and worker protections
with 100% Verified Answers |Latest
2025/2026|Latest Update
_____________________________________________________________________________________
Define adsorption
the process whereby a pesticide binds to soil particles
Define persistence
The ability of a pesticide to remain present and active in its original form for an extended period
before breaking down
Define volatility
tendency of a pesticide to turn into a gas or vapor
What is the main cause of spray drift?
pesticides applied as small droplets when nozzles are too far from the target
What is the main cause of vapor drift?
volatile pesticides applied when air temperatures are high and soil is dry and sandy
What is the main cause of particle drift?
dust formulations applied just before or during windy conditions
What is the main cause of runoff?
soluble pesticides applied just before a heavy rain
What is the main cause of leaching?
persistent pesticides applied to the soil
With what soil conditions are you more likely to see pesticides leach through soil?
sandy soil, low organic matter, where groundwater is shallow
What can produce a pesticide residue on a crop that exceeds legal tolerances?
allowing residue to drift onto crop from nearby area
What is the definition of pesticide residue?
what remains of treated surfaces for a time after application
What condition can contribute to the buildup of pesticide residue?
, failing to account for organic matter content of soil before determining the correct application
rate
What practice can cause pesticide residues to accumulate in an area?
applying the same pesticide for many years to the same site
What site characteristic makes it more likely that a pesticide will contaminate groundwater?
geological layers at the site are made up of permeable gravel deposits
Pesticides can cause indirect harm to nontarget organisms by . . . ?
altering their food sources or habitats
What ways do people get exposed to pesticides and the routes of entry?
Container mishandling during transportation and storage; mixing and application; REI
misconduct; enters through dermal, inhalation, or ingestion
How does offsite movement of pesticides endanger human health?
drift reaching homes and items outside; residues on produce and ingesting that produce; runoff
and leaching into drinking water
What conditions at the application site may change and influence the hazards associated with
application?
wind speed, direction, temperature, cloud cover; whether workers are in vicinity; training
What tasks are most often associated with accidental pesticide exposure and why are they
hazardous?
spills, splashes, or equipment failure during transporting, storing, mixing, loading, or applying;
How can incorrect dosage contribute to human hazards?
applying too much will leave greater amounts of residue on crop
How can incorrect application timing contribute to human hazards?
Most pesticides have a PHI to ensure residue will be below tolerance levels at harvest and
consumption; so incorrect timing will cause the PHI to still be in affect when harvesting or even
planned REI
How can incorrect pesticide product application contribute to human hazards?
may apply to an unregistered crop;
What are human hazards associated with pesticides?
skin, eye, respiratory, or oral exposures; dermatitis, lung injury, blindness; not wearing proper
PPE to protect self
What are potential effects of acute and chronic pesticide exposure on people?
, damage and irritation of eyes, mouth, skin, or respiratory tract; nausea, vomiting, etc.; systemic
effects when absorbed by body; dermatitis; allergic reaction
What is heat stress? How do people develop heat stress?
occurs when body cannot cool down so core temperature continues rising; body is attempting
to get rid of excess heat but instead is storing it; developed when person is getting warm and
sweating but the immediate surroundings (say under PPE) are high temperatures and high
humidity as well
The most frequent route of pesticide exposure is through the . . .
skin
Pesticide drift can endanger human health in what ways?
residues exceeding legal limits on crops; contaminating veggies in backyard gardens;
contaminate laundry hung outside to dry; damage surfaces in and around homes
Which of the following conditions observed at a site can quickly change and affect the outcome of
your pesticide application?
wind speed and direction; temperature and cloud cover
Why are mixing and loading considered among the most risky activities for pesticide handlers?
spills and splashes are common when working with concentrated pesticides
What hazard does the preharvest interval help a pesticide applicator avoid?
exposing people to unsafe levels of residue on food they eat; exposing fieldworkers to excessive
pesticide residues on crops they harvest
What could increase hazards to pesticide handlers and fieldworkers?
applying oil soluble pesticides
What defines the difference between chronic and acute pesticide exposure?
chronic exposure is repeated exposure to small amounts of pesticides; acute exposure is short-
term exposure to a large dose of pesticide
On a humid summer day, you notice that a coworker has difficulty focusing on the job he is doing, is
irritable, and starts to complain of feeling sick. When you offer him a cool drink, he shows no interest
in it. Your coworker is suffering from . . .?
heat stress
How does PPE and engineering controls protect a person from hazards associated with pesticides?
they greatly reduce the potential for all types of exposure and reduce chances of pesticide
poisoning
What safety training is provided to field workers and pesticide handlers?
, annual safety trainings before entering treated fields or handling pesticides; certain individuals
will need to take licensing exams
What is included in the employer's responsibility for providing PPE for mixing, loading, applying, and
storing pesticides to employees?
employers are responsible for providing PPE and training on how to use it for ALL employees
that may use, handle, apply, or be exposed to pesticides; must be easily accessible; responsible
for cleaning and maintenance;
What PPE and controls are used to protect handlers from exposure?
chemical resistant clothing; reusables; disposables; coveralls; chemical resistant suits; aprons;
headgear; gloves; footwear; safety googles or glasses; face shields; enclosed cab; closed mixing
systems
How do you select the most effective PPE?
LABEL
How do you dispose of worn or single-use PPE?
Send contaminated garments to facilities approved for pesticide residues; some may allow
burning
How do you prevent or mitigate heat stress?
avoid applications when temperature is too warm; take short breaks;
What are the limits of PPE to protect pesticide handlers?
PPE cannot prevent spills, splashes, or accidental sprays; PPE reduces exposure but cannot
prevent it alone; some pesticides may penetrate PPE; pesticides already on clothing or skin
under PPE have increased chance of being absorbed so make sure you and your clothes are
clean before putting on PPE; don't contaminate the inside of the PPE
What are the different kinds of engineering controls and when are they used?
enclosed cab; closed mixing systems; packaging; atmosphere monitoring equipment
PPE protects you from exposure to pesticides by . . . ?
keeping dry and liquid material off your skin
What is required training for fieldworkers who will enter treated areas within 30 days of the
expirations of any restricted-entry interval?
first aid for pesticide injury and poisoning and emergency decontamination instruction
Pesticide handlers must be trained in which three subject areas?
safe pesticide use; emergencies and health; and legal info and worker protections
